Electric sw



screw-holes d, by means of which it maybe ilNiTn STATES FRANKLIN A. VYELLER AN D ADOLPH F.

PATENT OFFICE.

RIE'IZEL. (ll? LYNN. MASSA(IIUSETTS.

ELECTBiC SWiTCH:

SPEGIFICATIQN forming part of Letters Patent No. 398,560, dated February 26, 1889.

Application filed December 12, 1888. Serial No. 293,374. (No model.)

To all whom it may 001mm:

Beit known that we, FRANKLIN A. WELLER and ADOLPH F. RIETZEL, born of Lynn, in 1 thecounty of Essexyfitate of Massachusetts, have invented a certain new and useful Improvement in Electric Switches, of which i the foilowing' is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the same, reference being had to 'the accompanying drawings, forming part of this specification, in l which 7 Figure l is atop plan view of our improved switch, the cap being removed; Fig. 2, a vertical transverse sect ion, the cap being in position; Fig. 3, a like view taken on line :1: w in Fig. 1, and Figs. 4 and sectional views illustrating details of construction.-

Like letters and figures of reference indicate corresponding parts in the different tigures of the drawings. 1

Our invention relates especially to that class of electrical switches which are ordinarily known as double-pole switches, and are particularl y adapted for use with electriclight Wires; and it consists in certain novel features, as liereina'tterfully set forth and claimed, the object being to produce a simpler, cheaper, and more ottective device of this character than is new in ordinary use.

The nature and operation of the improvement will be readily understood by all conversantwii-h such matters from the following explanation. I

in the drawings, A represents the body or iableoi' the switch, and B the case. The table consists of a circular wooden plate chmnbered at h on its under side, and provided with readily attached toawall or other convenient position. A metallic plate, (7, is secured to the face of the table by serewsf, and formed integral with said plate is a vertically-arranged tube, g, which proje' cts downward through said table, as shown in Figs? and 3. The frontwall of the tube g is cutaway at it above the plnte'C, and lit-ted to slide vertically therein is a rod,,;i. Secured-to the upper end of the rod i there is a plate,.k,pro-

vided with two forward]y-projecting arms, Z

m, situated, respectively, at the ends of said plate, the arrn Z being farther from the table l A than the arm m, as shown in Fig. 3: A horizon tally-arranged wooden bar, D, is centrally secured on lhe plate A by abolt, q, and is provided at each end with a slot, 12, and screw 22, forming clamps, in each of which adownwardly-projecting metallic rod or plunger, 1'), is adjustably secured. A verlicully-disposed standard, 7-, is secured to the plate (I, so that "Alever,-l(,'is'pivoted atto the forward endof the plate so that it will swing horizontally, said lever being provided on its outer end with a handle, L, and having its inner end projecting into a horizontal guide slot or groove, formed at the base of the standard 1. A stop, .2',is disposed at each side of the plate 0 to engage said lever and prevent it from being swung too far on its pivot. A horizontally-arranged stiff fiat spring, P, is secured atone end to the lever K by a bolt, 15, upwardly-progeeting studs preventing the spring from moving laterally thereon.

Thefree end of the spring P is extended longitudinally over the lever K, its extreme pointbeing in position to engage the tracks if 'v of the cam H when said lever is moved. Two ordinary'brass poles or connectors, 35, are securedto the face of the table A equidistant from one end of the bar D, saidconnectors being provided with a slot, 4:5,and screw for securing the conducting-wire therein in the usual nanner. 'lwo similar connectors, 65, aresecured to thetable equh distant from the opposite end of the bar'l).

, A plate, 75, of soft copper, (see Fig. 4,) is

disposed on the table A in contact with each.

pole 35 and 65, the'plates of companion poles being extended toward each other and their free ends flattened and turned vertically when depressed, as hereinafter described. A

, spring, 95, composed 0t phosphor-bronze, is

secured to the top of each pla-te 75,its free I ing, 4i, through which end bearing agaii and tending to to plate, (see Fig. 4,) being to render c the soft copper when in use.

The upper end tically on its rear ist the end 85 of said plate rce it toward its companion the purpose-of said springs ertain the contact between plates and the plungers p of the rod t is slottedver side, as shown 14; in Fig.

2, and a screw, 24, projects through the'tube 9 into said slot to in gsaid rod from A vertically-arr is secured to the plate 1" the bar D and p serve as a stop for being elevated'too far. anged spring, 3i, (see Fig. 5,) in position to engage revent it from being accid'entally moved from the position into which it may be thrown The cap Bis de signed to inclose the device on the table A, and is provided with an openlever K projects, tion by a screw, tube 9,

zThe, wires N M pass upward through holes 64; in the table A, their ends being respectively Fig. 1'.

Inthe use of our being elevated, as shown in Figs. 2 and 3, the

circuit is broken. complete the circ K ismoved from right to left or into the tion Shown by the This causes the fr forced upward on H, as shown by When the spring end of said track,

plate 7; and forces the rod secured *in the poles and improvement, the bar I) If it is desired to close or it, the handle of the-lever posidotted lines 13in Fig. ee end of the spring P to be the upper face, 2, of the cam dotted lines in Fig. 0 leaves or it strikes passes the upper the arm on of the tube'g, the plungers 19 being atthe same time forced between th e ends 95 of the soft-copper plate and connection thus made between the companion poles. thelever 5 .cansing' the ends ofthe springP to follow the track v of the cam, as shown by dotted lines 1 33 inFig; 2, and when it leaves the lower end of -said.t-rack.to strike the plate 71-. This upward in the tube and arm Z of the underside of the forces the rod 1 disconnects the plungersp from the'copper plates 85.

6o be adjustedvertically,

It will be seen that the screw 2-1, prevents the rod ifr om'being thrown too f;rr upward by the sprin By using" the pliosplior-bronze springs 115 the wear of the pluugers upon the soft-copper plates is in a for and the cont and plates rendered plungers, being d the sockets rendef venting the a'etioubt" the inggreater u plungers.

Having thus ex we claim ispon great degree compensated not between perfect, Moreover. the isposed in the slots 12. maj.

sparlfi' i one than-the other of said plained our invention, what prevent-j;

the handle L of. the said cap beingheld in-posi- 54, in the upper end of the 5 which projects through a slotv in said 65, as shown in i downward in the. ,5

To break the circuit K is moved in the opposite direction,

said plungers and their-contact with red simultaneous, thus prerom b'el 1. Ina switch of the character described, I the combination of a table provided with poles. a rod bearing metallic plungers and fitted to slide in said table,'metallic sockets for said i plungers iii-contact with companion poles, a pivoted lever provided with a flat spring, a cam provided with two faces or tracks for distending said spring when the lever is moved, and arms on said rod foreng'agiug the springwheni it leaves said tracks. substantially as i 'set forth.

2. In a switch of the character described, the combination of a table provided with poles, a rod fitted to slide insaid tableand provided with a plate having arms, a bar onsaid plate provided with metallic plunger-s, metallic plates in contact with companion polesand f forming sockets for said plungers,,apivotcd lever provided with a flat spring,- audacain fordiste'nding said spring when theleveris moved, wherebyit iwill strike one of said arms when returning l l l i l l after leaving said cam substantially as and for'the purpose specified. I

the combination of a table provided with poles, a bed-plate provided with a tube, a rod fitted 1 toslide therein, a plate'on said rod provided with arms, a bar ing metallic plunge'rs,

to its normalpdsition 'nietallic plates in con-- secured to said. rod and beartact withcoin anion mics and fOllIlill r sock- P 1 i l 3. ha switch of the character described, I

j cts for said plungers, a pivoted lever provided f with a fiat-spring, and a cam on said bed-- i plate for distending said spring, whereby it ,may caused to strike said arms and actuate the plung'ers, substantially as set forth.-

I 4, in a switch of the character described,

the combination of the; table A nrovidedavith I 1 the poles and (3'5, the rod 1', fitted to slide in said table and provided with the plate 7;,

; having the arms Z in, the barD,provided with the plungers p, the plates 75in. contact with said poles and,foi'iniiigsockets for said plungers, and mechanism t'qrengagi-ng said arms and'actuating said plungers, suliist'antially as 1 and for the purpose set forth. Q i l 5, In a switch of the character described,

to slide'in'said' tube, a plate onsaid rod havin g on t wa ['(ll y -p roj cot i n g a rms, a bar provided with metallic plate,'a soft-copper pole, companion plates forming sockets-for the plungers, apivot'cdl ,ver provided with di'stending said spring;

of said plunger-plate as it leaves the cam,

"FR ANKLiX' A. warm. nnorru r. RIETZEL.

\s'itnesses:

G. H. QUAID, WM. H. Wnvx.

' the combination ot'a table provided with poles, a bed-plate having avert-ical tube, a rod fitted a flatspriug, and a cam having two fiaces for when said lever is moved,-wherebyit is caused to strike an arm plungers and. secured to said platein contact with each substantially as and for the purpose set forth; 

